AI Image Upscaler: Enhance Photos in Browser

Drop an image to enhance

or paste (Ctrl/Cmd+V) · best on small / low-res images · stays on your device

Loading the AI model…

Original (scaled)AI 2× enhanced

Private by design

The AI runs inside this browser tab. Your image is never sent to any server. Check your network tab: zero uploads.

Real super-resolution

A transformer model (Swin2SR) reconstructs detail rather than just stretching pixels. Best on smaller or compressed images.

Free, always

2× upscaling is free forever, with no sign-up, no watermark and no usage limit.

Part of BeginStudio. Powered by Transformers.js (Apache-2.0) and the Swin2SR model (Apache-2.0). Large images are enhanced in small tiles, so the result is always 2× the original size (images over 2048px are first reduced to 2048px).

Quick answer: Enlarge and sharpen an image 2× in your browser with an on-device super-resolution model, with no upload and no watermark.

Last updated: July 2026 · Free · Runs entirely in your browser.

About the AI Image Upscaler

Upscale and sharpen low-resolution images 2× directly in your browser. An on-device super-resolution model rebuilds detail without sending your picture anywhere, with no watermark and no sign-up. Ideal for rescuing small logos, old photos and over-compressed images.

Explore more: AI Background Remover · Image Compressor · BeginStudio AI tools · all free tools

Frequently asked questions

Is it free?

Yes. It is free with no signup, no watermark and no usage limit.

Is my data uploaded?

No. The AI model runs inside your browser, so your image never leaves your device.

Why is the first run slow?

The first time, your browser downloads the AI model from a public model host (Hugging Face via jsDelivr). After that it is cached and starts much faster.

Does it work on phones?

Yes, in a modern mobile browser, though large inputs run slower than on a laptop.

When upscaling helps

Upscaling doubles the width and height of an image and uses an AI model to fill in the extra detail, so edges stay sharper than with a normal resize. It helps most with small images that look soft when shown large:

An old logo you only have as a small PNG, needed for a banner or print.
Low-resolution product photos sent over WhatsApp, which compresses images heavily.
Screenshots and illustrations you want to reuse in a slide.

What it cannot do

Upscaling cannot recover detail that was never captured. A blurred face will look smoother but not truly sharper, and very tiny text cannot be made readable. Faces and fine textures can look a little painted. Compare the original and enhanced views side by side before you use the result.

Example sizes

A 600 × 400 photo becomes 1200 × 800. That is enough for a full-width blog image or a crisp phone display. For an A4 print at 300 DPI you need about 2480 × 3508 pixels, so start from the largest source you have.

After you upscale

The result downloads as PNG, which can be large. To post it on a website or attach it to a form with a size limit, convert or compress it: PNG to JPG for photos, or compress image to 200KB for upload portals. Large images take longer to process on phones; a laptop is faster for big files.

Upscale & enhance photos. In your browser.